Vol. 7, Special Issue 6 (2019)
Performance evaluation of solar tunnel dryer for potato chips
Author(s): Vivekanand Singh, Naveendra Kumar Patel and Sandeep Kumar
Abstract: A solar tunnel dryer with a polycarbonate cover was kept under sunlight condition for four days. The dryer consists of two parts, namely a solar collector and a drying chamber with eight trays. Both parts are connected in series on the same structure. A polycarbonate cover is used to reduce heat losses inside of dryer, while allowing the incident solar radiation to transmit into the dryer. Loading and unloading of products to be dried are undertaken through windows at a side wall of the dryer. A ac-fan driven by a mean of electricity having 42 watt electricity consumption is employed to ventilate the dryer. To investigate its performance, the dryer was used to dry four batches of Potato chips. For most cases, the temperature of the drying air in the dryer varied between 32 to 42 °C from 9 A.M. to 5 P.M. This dryer can be used to dry 16 to 24 kg of potato from an initial moisture content of 60-75% weight basis (wb) to final moisture content of 0.02-0.04% (wb) within 4 days. High quality products in terms of flavor, color and texture were obtained. The quality of potato chips was fine almost.
Pages: 805-808 | 607 Views 167 Downloads
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How to cite this article:
Vivekanand Singh, Naveendra Kumar Patel and Sandeep Kumar. Performance evaluation of solar tunnel dryer for potato chips. International Journal of Chemical Studies. 2019; 7(6): 805-808.
